Home / 35,144.87-48,498.49-21,005.51

Finding the Fourth Proportional to 35,144.87, 48,498.49 and 21,005.51

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Solution

The fourth proportional to 35,144.87, 48,498.49 and 21,005.51 is: 28,986.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,144.87 : 48,498.49 = 21,005.51 : x
  2. Step 2: Convert to fraction form
    35,144.87/48,498.49 = 21,005.51/x
  3. Step 3: Cross multiply
    35,144.87x = 48,498.49 × 21,005.51
  4. Step 4: Simplify right side
    35,144.87x = 1,018,735,516.68
  5. Step 5: Solve for x
    x = 1,018,735,516.68/35,144.87
  6. Step 6: Final answer
    x = 28,986.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.